tag:blogger.com,1999:blog-47800749915482653032024-03-12T16:59:13.996-07:00Dr FeulerDJ Maquinahttp://www.blogger.com/profile/10550585096056271532noreply@blogger.comBlogger4125tag:blogger.com,1999:blog-4780074991548265303.post-49877282299808558972010-01-29T09:55:00.000-08:002010-01-29T09:59:05.870-08:00Back to the rootsIt seems that this year is gonna be all about the ancient beloved C++.<br /><br />Why?<br /><br />1- I have to dig deeply into Unreal and shading techniques<br />2- I will hack into MySql's source so I can create my own db engine<br />3- I will start developing embedded system for a transportation system platformDJ Maquinahttp://www.blogger.com/profile/10550585096056271532noreply@blogger.com0tag:blogger.com,1999:blog-4780074991548265303.post-32168072645219678862009-12-29T07:04:00.000-08:002009-12-29T07:34:31.188-08:00Treemap .... such a big lie ...Here I will talk about the real nature of treemaps and the unfortunate fact of their pleasent appearance dispite their misleadng reality ...<br /><br />I will use this post to present my version of a more reliable hierarchical representation that uses the same compact technique as a treemap: treestack<br /><br />What is a treemap?<br /><br /><br />A treemap is just a hierarchical partition of a usually rectangular space in which every rectangular part represents quantitative properties through visual charactetistics like area and color.<br /><br /><br />The following picture shows an exampe of a treemap<br /><br /><p><br /><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgb7-nGumT-VkzMw-j98V-zPFrc6D1n7Yj2fN20Kj6PinYd6pcQlb7CJqGbFPkMmUR1RKLONMip1npxqvN6IIBgIRvhKA79okzBwwSN2rNBbw3FmiWTsQjN60Fzabb5f8SnZLRSNSGv937n/s1600-h/Heatmap_incito.png"><img style="MARGIN: 0px 10px 10px 0px; WIDTH: 266px; HEIGHT: 198px; CURSOR: hand" id="BLOGGER_PHOTO_ID_5420677884605450962" border="0" alt="" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgb7-nGumT-VkzMw-j98V-zPFrc6D1n7Yj2fN20Kj6PinYd6pcQlb7CJqGbFPkMmUR1RKLONMip1npxqvN6IIBgIRvhKA79okzBwwSN2rNBbw3FmiWTsQjN60Fzabb5f8SnZLRSNSGv937n/s320/Heatmap_incito.png" /></a><br /></p><br /><br /><p>showing changes in waiting times for patients of <a class="mw-redirect" title="Primary Care Trust" href="http://en.wikipedia.org/wiki/Primary_Care_Trust">English PCTs</a>. Image released under Creative Commons by <a class="external text" href="http://www.heatmaps.co.uk/cc/nhs_waiting.html" rel="nofollow">Incito Ltd</a>.</p>DJ Maquinahttp://www.blogger.com/profile/10550585096056271532noreply@blogger.com0tag:blogger.com,1999:blog-4780074991548265303.post-90648984724945724012009-12-23T15:33:00.000-08:002009-12-23T15:58:06.837-08:00LEP - A kingdom of data- Do you think is possible to ever think about database design again?<br /><br />- Do you think is possible to center the analysis and design of databases around a unique and universal design?<br /><br />- Do you think is possible that dispite universality we can keep good performance?<br /><br />- Do you think is possible to represent ANY information system using only one database design, so we can concentrate the attention on functionality and NOT on structure?<br /><br />These are the questions I will try to answer in this post and even give an example of a real application.<br /><br />I won't give detailed mathematical demonstrations ... it would be boring ... but you won't be disapointed either....DJ Maquinahttp://www.blogger.com/profile/10550585096056271532noreply@blogger.com0tag:blogger.com,1999:blog-4780074991548265303.post-27153718463420842132009-12-23T15:03:00.000-08:002009-12-23T15:08:47.834-08:00Axiom 1I am the center of the universe ... and so are you ...DJ Maquinahttp://www.blogger.com/profile/10550585096056271532noreply@blogger.com0